Here are my rambling notes on how to power Cisco IP phones.
Posts Tagged ‘ voice ’
IIUC Notes – VoIP Structures
Feel free to correct. No need to sugar-coat it; I’m pretty new at this stuff. :) Advantages of VoIP Reduces costs of communications: Eliminates/reduces long distance and international call tolls Reduces costs of cabling: No need for second network of phone lines Integrates all voice into one large network: All your remote offices can...
IIUC Notes – Old School Voice Stuff
I'm starting down the CCNA Voice path to get some exposure to the voice side of the house. Here are some of my notes for those studies.
ONT Notes – AutoQoS
Here are some more notes from my ONT studies. AutoQoS seems to be pretty straightforward.
ONT Notes – Pre-classify and End-to-end QoS
Here are some more ONT notes. We study pre-classifying and end-to-end QoS this time.
ONT Notes – Congestion Avoidance, Policing, Shaping, and Link Efficiency
Here's another set of notes from my ONT studies.
ONT Notes – Queuing
Here are some more notes from my studies. Of course, no one cares about them but me, but it’s my blog. I’m sure someone will find it useful. Please help to correct dumbass mistakes. Congestion Speed mismatch – traffic leaves a lower-bandwidth interface than the one it came in on Aggregation problem – lots...
ONT Notes – Classification, Marking, and NBAR
Here’s another set of notes from my ONT studies. I’m sure someone will find it useful. Please help to correct dumbass mistakes. Classification is done with traffic desriptors Ingress interface CoS value on ISL or 802.1P frames Source/destination IP address IP Precedence or DSCP value MPLS EXP Application type Layer 3 QoS Type of...
ONT Notes – Intro to QoS
I’ll try to keep it a little shorter this time. Major issues for converged enterprise networks Available bandwidth: competition among applications Fixes Increase bandwidth: More power! Properly queue based on classification and marking: QoS Compress: cRTP, TCP header compression, etc. Delay: Lead time to get a packet to the destination Types of delay Processing...
ONT Notes – VOIP Networks
Here are some of the notes I’ve been taking while reading over the ONT book. I hope it benefits somebody. Feel free to correct any stupid mistakes as a paraphrase to avoid a lawsuit. There’s way too much info here. I’ll refine the process a little better for the next topics. Benefits of Packet...
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